any chance so guests can view only?

Yes. In the Quiz Template, remove the if clause that prohibits Guests from viewing. Then, set each quiz so that Guests may not take the quiz.

I had a slight problem with this mod in that it put a bunch of commas above the result table. To solve that, I changed:
to

When I click submit at the end of a quiz I always get the "You have already taken this quiz" error.

It also takes about 5 minutes to come back with results.

I just installed it and I know I haven't taken them yet, any ideas?

Have you installed any of the mods in this thread or are you using the base code?

Just what I downloaded from the first post.

Great Hack.
I have one suggestion,
There's a big way to cheat this Quiz system, user can Take The Quiz. And when it show up, they can remember / copy/ print all the questions out and close the browser. At that time, they have all the questions, and the system won't show that they took the quiz.

I used this hack for award prize, so ... it's a big problem for me... if it is so easy to cheat like this.

Anyway to make it, if they see it, then they can't take it again ?

Or, make it where the user close the browser then it will pop up an error like : You haven't finish the quiz, are you sure you want to quit ? ... or we will only grade what you have done
so far if you close the browser ......... ?

Queck your quiz_results database table and see what's in there.

Well I use it for contests to but I make it so they can not see the answers to the quiz when completed. I don't want them giving all the answers away to other members.

This is what I consider a bug-fix. Y'all may consider it a mod. Either way, it changes how quizzes are scored.

Right now, if you take a quiz that has questions with multiple correct answers, it is possible for you to score higher than 100% on the entire quiz. This change fixes that.

(This is because the old version checked all the actual right answers, but didn't keep a count of the possible number of right answers)